OS 10.5 - iPhoto: Hidden images?

So i was just looking around "Finder" and i clicked on the "All Images" button.

I found some pictures that i once had in iPhoto (checked the "Get Info" to see its location)

But when i open up iPhoto there is nothing in there (because i deleted it all)

They were in a original and Modified folder... Any one know why its saving these photos and not displaying them in iPhoto. I don't want it to take up space on my HD especially if i don't want the picture.

Can i turn this off (saving of pictures even after removed from iPhoto?)